11001101231 has 4 divisors (see below), whose sum is σ = 11124709200. Its totient is φ = 10877493264.

The previous prime is 11001101197. The next prime is 11001101239. The reversal of 11001101231 is 13210110011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11001101231 - 2²⁶ = 10933992367 is a prime.

It is a super-2 number, since 2×11001101231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001101239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61803851 + ... + 61804028.

It is an arithmetic number, because the mean of its divisors is an integer number (2781177300).

Almost surely, 2^11001101231 is an apocalyptic number.

11001101231 is a deficient number, since it is larger than the sum of its proper divisors (123607969).

11001101231 is an equidigital number, since it uses as much as digits as its factorization.

11001101231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123607968.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 11001101231 its reverse (13210110011), we get a palindrome (24211211242).

The spelling of 11001101231 in words is "eleven billion, one million, one hundred one thousand, two hundred thirty-one".